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Heart|Lab Grown|IGI

1.51ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG782601931

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG782601931

Diamond specifications and retailer prices

From $326 CAD
$233 USD
As of October 30, 2026
Save $1,199 CAD (79%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,404 CAD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782601931 or 782601931. Listed at 19 retailers as of October 30, 2026, with a 368% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782601931
Dimensions7.23 × 8.00 × 4.62 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
7.23 mm8.00 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782601931
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 57.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,425 CAD|Low: $313 CAD|High: $2,404 CAD|Avg: $874 CAD|-40.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 9$326 CAD
Retailer 4$342 CAD
Retailer 2$356 CAD
Retailer 14$380 CAD
Retailer 10$404 CAD
Retailer 13$508 CAD
Retailer 17$631 CAD
Retailer 6$651 CAD
Retailer 11$657 CAD
Retailer 18$693 CAD
Retailer 16$735 CAD
Retailer 7$942 CAD
Retailer 8$1,066 CAD
Retailer 15$1,223 CAD
Retailer 5$1,235 CAD
Retailer 3$1,296 CAD
Brilliant Earth$1,425 CAD
Retailer 12$1,524 CAD

43 data points across 18 retailers

19 retailers$326 CAD to $1,524 CAD

A
Cheapest Retailer
-
$326 CAD
$233 USD
A
Retailer 2
-
$342 CAD
$245 USD
View
Final sale: no returns
A
Retailer 3
-
$356 CAD
$255 USD
View
A
Retailer 4
-
$380 CAD
$272 USD
View
Retailer 5
-
$404 CAD
$289 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$508 CAD
£286 GBP
View
A
Retailer 7
-
$631 CAD
€430 EUR
View
A
Retailer 8
-
$651 CAD
$466 USD
View
A
Retailer 9
-
$657 CAD
ZAR 7,592 ZAR
View
A
Retailer 10
-
$693 CAD
$496 USD
View
A
Retailer 11
-
$735 CAD
$526 USD
View
B+
Retailer 12
-
$942 CAD
A$1,037 AUD
View
B+
Retailer 13
-
$1,066 CAD
$763 USD
View
B
Retailer 14
-
$1,223 CAD
$875 USD
View
B+
Retailer 15
-
$1,235 CAD
SGD 1,194 SGD
View
B+
Retailer 16
-
$1,296 CAD
$928 USD
View
B+
Retailer 17
-
$1,425 CAD
$1,020 USD
View
B
Retailer 18
-
$1,524 CAD
£859 GBP
View
Most Expensive
Brilliant Earth
20465160A · Sep 28
$2,404 CAD
$1,720 USD
View
Price last confirmed 35 days ago
18 more retailers have this diamond
Prices start from $326 CADSave up to $1,199 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Heart
$326 CAD